Playground apparatus



c. E. HOPPES March 17. 192 5.

' PLAYGROUND APPARATUS Filed April 16, 1923 animator Patented Mar. 1 7, 1925.

. UNITED 4 STATES PATENT-OFFICE.

CHARLES E. HOPPEB, OF SPRINGIIEED, OHIO, I'ACTUBIN'G COMPANY, OF SPRINGFIELD,

ASSIGKOB TO THE EVERWEAB MANU- OHIO, A CORPORATION OF OHIO.

PLAYGBOUN D APPARATUS.

Application filed April 16, 1928.

To all whom it may concern.-

Be it known that I, Crmnnns E. Horrns, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Playground Apparatus, of which the following is a specification.

My invention relates to improvements in playground apparatus, particularly to that kind, of apparatus known as the ocean wave in which a revolving platform is hung from the upper end of a vertical standard in such a way that the platform as it revolves may have a ivoted swinging sidewise motion.

The 0 j'ect of my invention is to provide a rotatable bumper and antifriction device for the platform located at the lower end of the standard for the urpose of eliminating wear between the p atform and standard, and also to reduce friction between the platform and standard to allow for a more free rotation of the platform.

Referring to the drawings:

Fig. 1 is a view of an apparatus embodying the improvements.

Fig. 2 is a vertical section of the upper portion of the support standard and the platform support.

Fig. 3 is a sectional View of the lower portion of the standard and the bumper.

Fi 4 is a side elevation of a portion of the p atform support.

Referring to the drawings, 1 represents a series of platform members preferably constructed of wood and arranged in circular fashion with adjacent ends connected together by metallic plates 2. An inner ring 3 is also preferably provided which is rig idly connected to the respective platform members by the arms 4. A central standard 5, preferably of tubular form, has its lower end embedded in cement 6 so as to maintain the standard rigidly in a vertical position. Inserted in the upper end of the standard is the reduced wing-shaped neck 6 of a semicylindrical head 7, upon which rests the semi-cylindrical portion of a cap 8. The cap 8 has a pluralit of pairs of ears 9 and between each pair 0 ears is rigidly clamped the upper end of a metallic rod or strip 10, the lower end of which is pivotally connected to one of the metallic plates 2. The cap 8 is preferably provided with an oil cup 11, and an orifice 12 for lubricating purposes.

Serial No. 832,237.

Rotatably mounted upon the lower end of the standard 5 between collars 13 and 14 is a disk or wheel 15 preferably of wood. Each one of the collars is secured to the standard by a wedge 16 and bolt 17 the collar being provided with an offset ortion having a pocket 18 to receive the wedge.

In operation, the ring 13 as the platform swings from side to side uring its revolving motion, comes in contact with the rotatable bumper and antifriction device to eliminate friction between the ring and the standard, thus preventing wearon the standard to an extent which would endanger its supporting capacity, and also acts to cushion the platform and reduce friction to allow for the free rotation thereof.

1. In an apparatus of the character described, a vertical supporting standard, a platform revolubly 'hung from the upper end of said standard in a manner to ermit sidewise swinging movement of sai latform, and a bumper rotatably mounte on said standard with which said platform contacts in its sidewise movements,

for the purpose specified.

2. In an apparatus of the character described, a vertically-arranged standard, a

platform revolubly hung from the upper end of said standard in a manner to permit sidewise swinging movement of said platform, a pair of collars clamped to said standard near the lower end thereof, and a disk rotatably mounted on said standard between said collars in the path of said platform as it swings sidewa s.

3. In an apparatus 0 the character described, a vertical standard, a platform revolubly hung from the upper end of said standard in a manner to permit sidewise swinging movement of said platform, said platform having an inner ring, and a rotatable bumper mounted on said standard in the path of said ring as the platform swings sidewise.

4. In an apparatus of the character deform in spaced relation with said standard, scribed, a vertical supporting standard, a and a rotatable buifer supported by said rotatable support at the upper end of said standard in the path of said ring. standard, a series of downwardly projecting In testimony whereof, I have hereunto set 5 rods hinged to said support, a circular platmy hand this 9th day ofMarch, 1923.

form connected to the lower ends of said rods,'an inner ring connected with said plat- CHARLES E. HOPPES. 

